andropause /ˈændrəʊˌpɔːz/

• 1. 

  N the period, usually occurring between the ages of 45 and 55, during which a man's testosterone levels may fall, leading to a reduction in vigour and sexual drive 男性更年期; 普遍出现在45~50岁的男性间，由于睾丸激素数量消减造成精力与性欲下降 (Also called male menopause)